William ives



NiTnD STATESl PATENT OFFICE.

WILLIAM Ives, OF BUFFALO,'NEW YORK.

.BOOK-BRAC E.

Specification forming part of Letters Patent No. 12,279, dated January 23, 1855.

T0 @ZZ whom, it may concern:

'venting them from falling or attaining an inclined position and consequent injury; and I do hereby declare that the following is a full and exact description of the construction and Operation of the same, reference being had to 'the annexed drawings, making` a part of this Specication, in which- Figure 1 is a perspective view; Fig. 2, the slide. Fig. 3 is avertical transverse section of the slide, showing' the pointed spring-bolt and thumbscrew. Fig. 4 is a perspective view of the bottom of the brace.

A A, Fig. l, is the brace, kin the form of a book on one side, and extending its whole length is an adjustable slide, B, which may be secured in its proper place by the th u nib-screw C. To the upper end of the slide is attached a pointed springbolt, D.- The lower end Ot' the slot has a lateratextension or rest, E, into which the shank of the bolt may be drawn when the brace is to be placed on or' taken from a shelf. To secure the foot of the brace to the shelf, there are two spurs, F F, Fig. 4.

It the brace be placed at the end of a row of books on a shelt' with the slide adjusted so as to bring the shelf above within reach of the bolt, it will be seen that by detaching the shank of the bolt from the rest the shelf will be pierced by the point of the bolt, which, with the two spurs, will hold the brace firmly in its place.

The object of the slide is to make the brace available on transferring it to various shelves havingv spaces between them ot' greater or less width.

The spring-bolt may be attached directly to a brace having no slide, in which case the brace must be made in length to fit, or nearly so, a

given space.

WILLIAM IVES.

Witnesses:

ALONZO TANNER., LEVI BALLO U, J r. 

